culture is practicall the same as when growing most orchids-- giving it as much light it could handle(without scorching the leaves, that is). And some humidity.
filtered light in greenhouse conditions is probably the best way to go, as indirect light by a window sill might not be enough to encourage it to fruit.
foliar or root fertilization with trace elements, especially zinc, may also help(peppercorns have a considerable amount of zinc, Mn, chromium, etc, which probably contribute to the spicy metallic taste). Zinc is often a limiting factor in blac pepper culture, even in tropical asia where it originated. The typical soil mixes we get from home depot might not have enough trace elements.
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